John Bradley Books

Text and movable, pop-up illustrations reveal the internal workings of an airplane. Includes instructions and materials for making a paper model airplane.

The Train

By Roy Marshall, John Bradley, Marshall Ray.

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Moving diagrams and lift-up flaps show the structure of various kinds of trains, steam, diesel, and electric, and explain how the engineer operates each kind. Also includes an easy-to-assemble mode...

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If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

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If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.